The story of the Winged-S
Subtitle: late developments and recent        photographs of the helicopter,an autobiography
By: with many illustrations from the   author's collection of photos.
Publisher: Dodd, Mead
Published: 1958
Place of publication: New York
Language: eng
Number of pages: 280
Subjects: Airplanes; Helicopters
Notes: "Enlarged edition, including new chapters on recent, successful   helicopter experiments."-Dust jacket.